SSH connection problems on macOS 13 Ventura

A quick workaround if you have connection problems to older SSH server versions

If you’re on macOS 13 Ventura and have problems connecting to older SSH server versions, you can add

PubkeyAcceptedKeyTypes +ssh-rsa

to your ~/.ssh/config to make it work again. This setting has some security drawbacks, so you might want to consider enabling it only for specific, trusted hosts.

Return to sender – Florian’s beginner guide to improve e-mail deliverability (II)

How you can improve e-mail deliverability by working on your IP and domain reputation

If you run your own mail server, you’ll sooner or later likely run into e-mail deliverability problems due to what is called IP or domain reputation. Especially larger providers have various and sometimes not easy to understand filtering systems in place that might refuse messages from your machine.

While there is no magic wand to solve all deliverability problems, this article will give you an overview of some essentials that help messages from your mail server hopefully reach their destination.

„Return to sender – Florian’s beginner guide to improve e-mail deliverability (II)“ weiterlesen

What do open source and cooking have in common? (talk at SFScon 2021)

Why free software and the art of cooking have more in common than you may think

At SFScon 2021 I had the opportunity to give a talk about “What do open source and cooking have in common?”.

„What do open source and cooking have in common? (talk at SFScon 2021)“ weiterlesen

Happy Birthday, LibreOffice!

LibreOffice was created on 28 September 2010

Eleven years ago, on 28 September 2010, a new chapter in the history of free office suites started: the creation of the LibreOffice project and the start of The Document Foundation as independent entity. Thanks truly to everyone who made this amazing journey possible. <3 Happy birthday!

(In 2016, I wrote some personal thoughts about this in German.)

Return to sender – Florian’s beginner guide to improve e-mail deliverability (I)

How you can improve e-mail deliverability by working on your IP and domain reputation

If you run your own mail server, you’ll sooner or later likely run into e-mail deliverability problems due to what is called IP and domain reputation. Especially larger providers have various and sometimes not easy to understand filtering systems in place that might refuse messages from your machine.

While there is no magic wand to solve all deliverability problems, this article will give you an overview of some essentials that help messages from your mail server hopefully reach their destination.

„Return to sender – Florian’s beginner guide to improve e-mail deliverability (I)“ weiterlesen

Thunderbird 78: Do not encrypt subject

How to disable encrypting your outgoing e-mail subjects via OpenPGP in Thunderbird 78

Thunderbird 78 comes with a completely revamped OpenPGP integration. Several features get implemented over the course of time, but might need manual configuration. In this article, I show you how to avoid encrypting your outgoing e-mail subjects via OpenPGP, resulting in “…” in the message overview, which can make it also hard to search for message subjects.

„Thunderbird 78: Do not encrypt subject“ weiterlesen

Thunderbird 78: Do not attach OpenPGP key

How to disable attaching your public OpenPGP key to outgoing messages in Thunderbird 78

Thunderbird 78 comes with a completely revamped OpenPGP integration. Several features get implemented over the course of time, but might need manual configuration. In this article, I show you how to avoid attaching your public OpenPGP key to each encrypted e-mail you send.

„Thunderbird 78: Do not attach OpenPGP key“ weiterlesen

On sessions, statutes and software – A glimpse behind the scenes at TDF (talk at openSUSE + LibreOffice Virtual Conference 2020)

Insights about working in an international free and open source community

At the openSUSE + LibreOffice Virtual Conference I had the opportunity to give a talk about “On sessions, statutes and software – A glimpse behind the scenes at TDF”.

„On sessions, statutes and software – A glimpse behind the scenes at TDF (talk at openSUSE + LibreOffice Virtual Conference 2020)“ weiterlesen